Improved turn-table



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LLoYD W. EMM/ART AND EDWARD D. GRIFFITH, oFvvAsHINGToN. CITY, DISTRICTor COLUMBIA.

Letters Patent No. 95,446, dated October 5, 1869.

IMPRVED TURN-TABLE.

The Schedule referred to in these Letters Patent and making part of theVsame WARD D. GRIFFITH, both of Washington city, in the District ofColumbia, have invented a new and useful Improvement in Turn-Tables forStreet-Railwaysof which the following is a fullr clear, and 'exactdescription, reference being hadlto the accompanying drawings, whichmake part of this specification, and in which- Figure 1 represents aview in perspective 0f a turntable with our improvement applied thereto;

Figure 2, an edge view of a portion of the same; and

Figure 3, a section, showing the details ofthe locking-lever.

Cars made to be drawn by a single horse on streetf railways arefrequently so constructed as to require the yuse of turn-tables toreverse them.

It is the object of our invention to provide means whereby the cars maybe reversed by the driver alone without leaving his car, and at the sametime to hold the table securely locked in positionwhile the car isrunning onor oii, and to lock it automatically when in line with thetrack; and to these ends,

Our invention consists First, incombining with the-locking lever, whichrevolves with the platform, a hinged snpport,'attached to the lever, andresting on the platform to prevent the accidental catching of thelocking-lever.

. Second, in combining a locking-lever and hinged support revolving withthe turn-table, a fixed trippingblock, to lower the'locking-lever, and afixed lockingcatch, into which the lever falls to hold the rails in linewith the trac-k.

In the accompanying drawings a tuin-table, A, constructed in anywell-known way, is shown as revolving on suitable bearings.

The rails` B, forming aeontinuation of the track, are secured upon andrevolve lwith the table.

l A looking-lever, C, is hinged to the table, or to one ofthe rails, soas to play vertically.

XVe prefer to make the locking-lever forked, to enable it better toresist the shock caused by stopping the revolution of the table. v

A support, D, is hinged to the locking-lever, near the edge of thetable,.so as to play freely vertically.

A tripping-block, d, is secured upon the fixed portion F ofthe table,and a locking-catch,E, is similarly arranged about a foot 'from thecatch.

The operation -of our invention is as follows:

The ear is driven on the table, thevparts being in the position shown infig. 1, in which' position the lever rest-s in ythe catch E, holding thetable firmly.

locked.

The driver then puts a hooked rod through one of y the ear windows, overthe projection c,`and lifts the locking-bolt Ifrom the catch E. rPhesupport D iexes as the lever rises, and holds it np during the rotation.of the table.

A shoulder under the hinge prevents the support from swinging beyond avertical line. This is necessary, as'otherwise the support might swingso far forward as to let the lever fall again, or even to stop the'turning of the table by abutting against the tripping# block, instead ofsliding over it.

The horse then pulls the car and table round. When nearly reversed, thesupport D rises lover the block d, and is ltripped, thus allowing thelooking-lever to drop'y and rise over the lower side of the catch intoits notch thus locking the table securelythe Vmoment the 1rails are inline with the track. r

The table only revolves through an arc of one hun'- dred-and eightydegrees at eachreversal of the car.

By duplicating the tripping-block and catch, as

shown in the drawings, two cars canl be reversed at.

' 1. The combination, as described, of the hinged locking-lever, and itshinged support, both revolving with the table, for the purpose setforth.

2. The combination, substantially as described, of a locking-lever,revolving Vwith the turn-table, a hinged support attached to the lever,a fixed tripping-block, and a locking-catch, whereby the table isautomatically locked by its own revolution, and securely held frommoving in either direction when theI rails are in line with the track.`l

In testimony whereof, we have hereunto subscribed our names.

' L. W; EMMART.

E'. D. GRIFFITH.

Witnesses: WM. P. YOUNG,

W. S. SHEPHERD.

